Page 7 Advertisements Column 2

Evening Post, Volume LXXIII, Issue 25, 30 January 1907, Page 7

Incredible as ife may seem, it is yet true that a French scientist has invented a method for photographing the voice (writes the Paris correspondent of the London Telegraph). Tho apparatus will probably soon receive a scientific name, and be called a "photovoy' 1 or "photophone," or something like that, and be sold in the shops as an article of ordinary or extraordinary consumption, like the gramophone It. is well known to musical [ students that appliances were contrived long ago by which tho number of vibrations composing a certain .musical note were registered by flames of greater or I lessor intensity. Dr. Morage drew attention to this fact in the course- of an ordinary lecture at the Sorbonne. It was while explaining the properties of the new dlectric apparatus of M. Pollak Virag. While the original Jvlorso apparatus could transmit only 4Q words in an hour, and tho latest Baudot reaches the limit at 4000, a Pollak- Virag transmitter can record 40,000 words in an hour. The messages in the Pollak- Vi^ag apparatus are recorded by means Of a special mechanism, which makes a certain number of perforations on a band of pa.per. Th«it» perforations ore reproduced at the other end, and by an inverse process come out in ordinary writing. Dr. Morage has devised a method by which a microphone would replace the manipulator. When speaking into tho microphone the voice is Tegisjered according to special wavelike signs resembling a | 6ort of shorthand, ana. is photographed at the other end j>f tho line. The entire process would Teqnire a very detailed explanation, but Professor Morage has already accomplished wonders, and showed many voice photographs to the Sorbonne students. THE RELATIVE VALUE OF TESTIMONIALS. Sander and Sons, tho woll-known Euca. lypti Extract manufacturer*, brought recently an action against an imitating: conoorn for mißuse of thoir reputation at tho Supremo Court of Victoria. During tho trial it was. shown that o. tostimonjal which stated "it is of equal quality as banders, and to which an honourablo publio title wns nppnndod, wns given by a partner of tho concorn. Tostimonuils relating to the Genuine Sander aud Sons' Luoalypti Extract wero shown to emanato from disinterested eciontifio bodies, and Sahdor and Sons' product was proved by oxpert witnesses to bo a preparation of genuine merit. Thoreforo, protect yourself from such imposition by insisting upon THE GENUINE SANDER AND SONS' PURE VOLATILE EUCALYPTI EXTRACT.Avt.